Seven Saints of Talis
The Shadowed Halls is the sunken remains of a Hive City found in the southern part of what is now the Tenebrous Marsh. It has been revealed that a very powerful Arch-Daemon, called The Artificer, has made its lair there, where it ensnares mortals in its deadly webs.
Located on the periphery of the once-great city are the ruins of Rhudriach, which appears to be a ruined temple complex that houses a series of metallic arches of unknown construction. This area is a holy site to all the tribes of the Tenebrous Marsh, and it is here that the shamans and chieftains of the tribes travel to be tested before assuming their roles. The grounds around the Rhudriach are elevated several meters above the swamp plain, and are composed of a heavy, red clay.
The remains of several previous expeditions into the ruins have been discovered, scattered throughout the shattered remains of the city. Worse yet are the still-walking remains of interlopers who have fallen prey to a strange form of parasitic fungus.